When working with multiple teams in Azure DevOps that have cross team dependencies, it can become quite hard to track what is going on.
If you recognize this problem I would recommend having a look at the Dependency Tracker extension for Azure DevOps: https://marketplace.visualstudio.com/items?itemName=ms-eswm.dependencytracker&ssr=false#overview
The Dependency Tracker extension provides you with the ability to plan and manage dependencies across teams, projects, and even organizations. It provides filterable views to show all dependencies a team is consuming and producing.
You can see both producting and consuming dependencies:
And there is even a timeline view available:
The easiest way to manage your dependencies is to use the predecessor/successor link type to link work items together:
More information: https://docs.microsoft.com/en-us/azure/devops/boards/extensions/dependency-tracker